More proof that we are not alone. A giant new radio telescope in China has detected mysterious radio signals deep in outer space.
Chinese astronomers have detected repeated fast radio bursts (FRB) believed to be sent from a source about 3 billion light years from Earth.
The radio signal blips are called "fast" because they are very short bursts, only several milliseconds in duration. FRBs are the brightest bursts known in the universe.
But most importantly: there is no reasonable explanation for the signal's origin.
The signals were detected with the largest and most sensitive radio telescope ever built.
The new Five-hundred-meter Aperture Spherical Radio Telescope (FAST) is located in southwest China's Guizhou Province.
The FAST telescope was completed in September 2016 and is due to start regular operations this month.
Scientists are carefully cross-checking and processing the FRB radio bursts, according to researchers at the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC).
Chinese scientists invited their counterparts in other countries to conduct more observations of the signals with their telescope facilities.
Astronomers from more than 10 countries and regions are making observation plans for China's FAST telescope in order to best apply the unprecedented power of the telescope, which goes beyond the capabilities of telescope arrays in the U.S.
Below is a scene from Jodie Foster's sci-fi movie Contact (1997), when giant telescope arrays in New Mexico first detected a mysterious radio signal from space.